If you are working in IT, your company will be more likely in Bellevue or Seattle area. You will be lucky if it is cheaper places like bothell. YOu don't want to live too far away from your workplace since the traffic is crazy out here in peak hours. Rain makes it even worse. Cost of living in Seattle and Bellevue area is pretty high. I live around Bellevue area and pay 1500 per month for single bedroom.
Other than cost of living and rain, it is pretty good out here. Esp the lakes, mountains and people here ( indians, asians mostly plus Nepalese).